Perceivable
WCAG 1.3.1
Landmark Regions
Semantic containers: <header>, <nav>, <main>, <aside>, <footer>. Screen reader users jump between landmarks. Every page needs exactly one <main>.
In plain terms
Label the main regions of a page — header, navigation, main, footer — so screen-reader users can jump straight to the part they want.
Why this matters
Landmark regions let screen-reader users jump straight to navigation, main content, or search, skipping the rest. Missing or duplicated landmarks remove that shortcut and cause confusion.
How to detect
Quick check
Check the page uses <header>, <nav>, <main>, and <footer> (or matching roles), with exactly one <main>. A landmarks extension lists them; multiple navs should each be named.